Who is Better: Luis Suarez or Sergio Aguero?

Billed by many as a title decider, Sunday's match between Liverpool and Manchester City has all the makings of a classic: Two teams in exceptional form, the Premier League title in sight for both, goals almost guaranteed and a showdown of two of the best players the league has to offer.

All eyes will be on Anfield on Sunday lunchtime.

Liverpool have won their last nine league games, including wins over Arsenal, Manchester United and Tottenham, and they currently sit top of the table, four points ahead of third-placed City having played two games more than their next opponents.

Their incredible form has seen them keep pace with a City side who have won 16 of their last 20 league matches, losing just once in that time.

There have been plenty of goals from both sides, with Liverpool having netted 90 goals in their 33 league matches so far, whilst City have managed 84 in 31, including 15 in their last five.

However, one important subplot will be the head-to-head between arguably the two best players in the Premier League: Luis Suarez and Sergio Aguero.

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Aguero has been out injured since City's trip to Barcelona in mid-March, but he was put through his paces prior to the Southampton match at the weekend and looked ready for action.

If, as expected, he starts on Sunday, he will be looking to add to his tally of 26 goals in 25 games this season in all competitions—a phenomenal strike-rate from a player who has improved immeasurably since his debut in English football back in 2011.

The Argentine has blistering pace and a nervelessness in front of goal that marks him out as one of the best finishers in Europe, yet it's his work-rate that separates him from the majority of top forwards.

Aguero presses hard up the field, defending from the front and forcing errors from defenders. His infectiousness and energy spreads to other players—his mere presence in the side is enough to lift those around him.

His involvement will be key for City in the match at Anfield.

There's little doubt, though, that he's been eclipsed by Suarez this season. While City's talisman has spent periods on the treatment table nursing injuries, Suarez has scored 29 league goals, meaning he is well on course to become the first Liverpool player to score 30 league goals in a season since Ian Rush in 1986-87, and he could yet surpass Alan Shearer and Robbie Fowler for the most goals scored in a Premier League campaign (34).

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Like Aguero, Suarez makes a nuisance of himself for 90 minutes, constantly harrying and pressuring the opposition. His goals have been remarkable in their diversity, too, from long-range stunners to poacher's finishes inside the box.

His technique is quite exquisite, capable of ghosting past players at pace and bringing balls under control from high in the air with natural ease. He's been superb this season, and Brendan Rodgers' decision to dig his heels in and keep him this summer when it seemed he would leave has proved inspired.

There's little doubt that these two are the best two forwards in England right now and when both fit and in form there's very little between them, but given Aguero's injuries this season, it's fair to say Suarez has performed the better.

Hopefully Aguero will be fit for this weekend's match as the world sits down to watch two attacking, in-form sides go head-to-head in a match that will go a long way in determining the outcome of the league.

Rob Pollard is Bleacher Report's lead Manchester City correspondent and will be following the club from a Manchester base throughout the 2013-14 season. Follow him on Twitter here: @RobPollard_.